Pumping machinery.



M. T. & M. C. CHAPMAN.

PUMPING MACHINERY.

APPLICATION HLED NOV. 21.1910. 1,152,603, PafentedSept. 7, 1915.

4 SHEETSSHEET 1.

M. T. & M. C. CHAPMAN.

PUMPING MACHINERY.

APPLICATION FILED NOV. 21. 1910.

1 1 511.8608 Patented Sept. 7, 19.15.

4 SHEETS-SHEET 2.

M. T. & M. C. CHAPMAN.

PUMPING MACHINERY.

APPLICATION FILED NOV. 21, 1910.

1,15,6U3, Patented Sept. 7, 1015.

4 SHEETS-SHEET 3.

774%: C. M, Z /QW M. T. & M. C. CHA N.

PUMPING MACHIN ICATION FlLED NOV.21 l9! Patented Sept. 7, 1915.

4 SHEET SSSSSSS 4.

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MATTHEW 1- annual! 4WD w L i WE I tweets, r heel;

sppu atiefi sl ie eews1 o all en itaw sew m;

Be i k o n ha T.- C P-v M and M RK 'iGi A -MAN, sit zeiisdi the Uni ed ates; r'Sid hs?iA1lf0. a, n the ou ty o K 'end t e o lll lne hav invented certain ne w'and useful Improve ment in P p ng Ma h eery of hibfh the f ng is a specifi a ion, ser ne be n had to t ae m a y e dr w n s Our in entionr at s' to Pumping machin ry for deepel p mps has pe ule ly t do w th Pumpin ma hinery of the type shownan'd described in our pending application Serial K635615237, filed 1 ay 1 91 hi t e Pump-red is e ciprocated by a pair of cranks carried by intermeshing gears so that they operate in unison to reciprocate the pump-rod without side-draft, and make it practicable to. se-

cure a longer stroke, by which a greater quantity of water can be raised than with a short stroke.

The object of our invention is to provide certain improvements upon the pumping machinery shown and described in our said applicatio'n,-such improvements relating more particularly to the connection between the driving gears and the pump-rod and piston, by which the construction is simplified and strengthened and a smoother action secured. We accomplish this object as illustrated in the drawings and as, hereinafter described.

What we regard as new is set forth in the claims. I

In the accompanyin drawings,Figure 1 is an elevation of t e pump operating mechanism; Fig. 2 is a plan view thereof; Fig. 3 is an enlarged detail, being a part al vertical section on line 33 of Fig. 2; Fig. 4 is a similar view, being a section on line 4-4t of Fig. 3.; Fig. 5 is an end view of the axis of the hub of one of the driving gears and showing the drum connected therewith for hoisting purposes; Fig. 6 is a plan view of the parts shown in Fig. 5; Fig. 7 is a detail, bein a partial vertical section on line 7-7 0 Fig. 1; Fig. 8 is an enlarged detail, being a section on line 8-8 of Fig. 7 Fig. 9 is a perspective view of the stirrups used in connection with the cross-head and the section lllustrating the bearing plates by which the pump-rod is secured against rotation and is permitted to oscillate slightly;

of lip ers Patent, 7

ides therefor Fig. 10 is a vertical as new a d Eiss- 11m 2 are-pai ialsi eiew sew difie ar an emen s of he drive nl'sm." Le th'b hieh appearan e p sb he mechan sm 3 Y i 2 indi'a es t e P s or rump ed which l$ threll h the ba e 11 and is n t t' ower end wi a Pu pe 3' hi h e nds do n istb th ell and i ro ided" w t ePiSwn in the u Way- 5 1 9 a p st n 5 s ow and de ribed n the pleading application ofMatthew T. Chapman Se' r a Ne mes filed Apr 11'. 1 8- "T e construction" Qlf the piston, however, has no hing to do th 01 present invention, as n u a e'piste m y beempl y d- 14 indicates the We1l-tube, which is preferably connected with the base 11 and is provided with an outlet 15 for the discharge of h Water'- 5 16-17 indicate uprights or. standards which rise from the base 11 and arecon-v nected at their upper ends by a cross-brace 1%}, as shown in Fig. 1. The brace 18'is provided with a central-passage for the passage of the end of the piston-rod when the latter is raised to its uppermost position, as shown at 19 in Figs. 1 and 2. The brace 18 is held in position set-screws 20 so that it may be conveniently removed when desired to permit of the removal of the cross-head hereinafter described.

21'22 indicateupper and lower beams or bars, which are mounted upon the uprights 16-17 and are spaced a distance apart so as to form a cross-head having a transverse groove on guide, as shown in Fig. .1. Said bars are spaced apart by means of stirrups 23 fitted between them and embracing the uprights 1617, as shown in Figs. 1, 7 and 8. The end portions of the bars 2122 are secured together by bolts 24:, which also serve to hold the stirrups 23 in position, the ends of the stirrups bein bent inward slightly, as shown in Fig. so that they cannot get out of place. 25 indicates bolts which secure the intermediate portions of the bars 21-22 together, as shown in Fig. 1',said bolts beingso disposed as not to be in. the way.

2627 indicate driving-wheels in the form tastes t 119 5 g the dra ingsll i d e of gears mounted upon parallel drive-shafts I 32-33 indicate slide-blocks connected, re-

2, 31 indicating supports for said shafts. The gears 26-27 rotate in unison in opposite directions, and inthe constructionishown in Figs. 1, 2 and 11 they intermesh, while in the construction shown in Fig. 12 they are set a distance apart.

" izross-lzie'ad, which will move upon the posts 6-1 In the arrangement shown in Figs. 1 and 2 the drive-wheels 2627 are driven'by means of a motor 36 mounted on the base and connected by a pinion 37 with a gear 38, which is mounted on a shaft 39, as best shown in Fig. 2. Said shaft 39 carries a pinion 40 which meshes with the gear 26 at the lower inner margin thereof and also meshes with a pinion 41 mounted on a counter-shaft 42 arranged parallel with and adjacent to the shaft 39, as shown in Fig. 2. The pinion 41 meshes with the gear 27 as well as with the pinion 40 so that power is, applied directly to both drive-wheels 2627. Instead of employing the two pin ions 40'41, we may employ a single pinion meshing with one or the other of the drivewheels 2627, as shown in Fig. 11, wherein the pinion 40 meshes with drive-wheel 26, the latter meshing with drive-wheel 27 power being communicated to said drivewheel 27. in that way; or, if desired, the drive-wheels may be set a distance apart so that they do not intermesh, as illustrated in Fig. 12, the pinions 4041 being employed to communicate the power to said drivewheels.

43 indicate counterbalancing weights secured upon the shafts 2829 to counterbalance the weight of the pump-rod and of the water being lifted.

44 indicates a drum mounted upon one end of theshaft 28 and-rotating therewith, as indicated by dotted lines in Fig. 2 and shown in full lines in Fig. 6. The drum 44 provides convenient means for hoisting thepump-rod, or for any other desired use.

The pump-rod 12 is connected with the cross-head by means of bearing-plates 4546 which are semi-cylindrical so as to fit together around the pump-rod and are provided with trunnions 4748 which fit in suitable bearing-blocks 49--50 carried by the cross-head bars 21-22 and preferably formed integral therewith, as shown in Figs. 1 and 3, the engagement of the oppositelydisposed semi-cylindrical trunnion members of the separate bearing plates 45--46 with the bearings of the blocks 495O serving to hold the lower ends of the said bearing plates together about the pump-rod. The cross-head bars 2l22 are provided with registering vertical passages to receive said bearing-plates, said passages being conical in form so as to permit of some oscillation of the piston-rod, as maybe necessary to allow it to compensate for disarrangement of the'position of the lower portion of the pump-rod, as when said pump-rod gets somewhat out of line. The bearing-plates 45-46 are internally serrated or screwthreaded to engage the pump-rod more firmly, said rod being also screw-threaded or roughened. A collar 51 is fitted upon the upper ends of the bearing-plates 4546 andis secured thereto by a set-screw 52, as shown in Fig. 4,said collar resting upon the upper cross-head bar 21. The purpose of this collar is to clamp the bearing plates 45-46 upon the pump-rod and hold it against rotation. p

53 indicates a nut screwed upon the pump-rod 12 above the collar 51 for suspgendmg the pump-rod from the cross-head. y adjusting the nut 53 the piston maybe adjusted vertically in the pump cylinder. The bolts 25 are placed at opposite sides of thebearing-blocks 4950 so as to properly clamp the bearing-blocks down upon" the trunnions 4748, as shown in Figs. 1 and 3.

From the foregoing-description it will be seen that when the gears 26-27 are rotated, the. cross-head will be caused to travel vertically uponthe guide posts 1617, thereby operating the pump, and as the slide-blocks 32 3'3 are always equidistant from the pump-rod the operation of the pump is free from side friction. Moreover, the upper end of the pump-rod is free to accommodate itself to the lateral movement of the lower portion of the piston or pumprod'so that there is no binding.

That which we claim as our invention, and desire to secure by Letters Patent, is,--

1. In a pump, the combination of a pumprod, a cross-head, oscillating means connecting said pump-rod with said cross-head comprising semi-cylindrical bearing-plates having trunnions journaled in the crosshead, said cross-head having a conical passage to receive said bearing-plates, and means for reciprocating said cross-head.

2. In a pump, the combination of a pumprod, a cross-head, means for reciprocating said crosshead, and means for connecting said crosshead to said pump-rod, said con- -necting means comprising bearing plates pivotally mounted on said crosshead andembracing said pump-rod, and means for tightening said bearing plates in position about the pump-rod in adjusted position thereon.

memos 3. In a pump, the combination of a pump rod, a crosshead, means for reciprocating said crosshead, and means for connecting said crosshead' to said pump-rod, said connecting means comprising bearing plates pivotally mounted on said crosshead and embracing said pump-rod, a collar aboutv said bearing plates, and a set-screw mounted in said collar adaptedto tighten said bearing plates together about said pump rod, said rod and said bearing plates having their contact faces roughened whereby secure clamping is attained.

4. In a pump, the combination of a pump-- rod, a cross-head, means for reciprocating said cross-head, and means for connecting said cross-head to said pump-rod, said connecting means comprising two bearing plates adapted to embrace said pump-rod, trunnion members carried by. each of said plates adapted to cooperate with the twin. nion members of the other plate, bearings necting means comprising two bearing plates adapted to embrace said pump-rod, trunnion members carried by each of said plates adapted to cooperate with the trunnion members of the other plate, bearings carried by said cross-head in which said trunnions are journaled and which are adapted to be tightened about the trunnion members'for holding said bearing plates together about the pump-rod, and other means for tightening said bearing plates in position about the 'pump-rod.

6. In a pump, the combination of a pump- ,rod, a cross-head, means for reciprocating said cross-head, and means for connecting said cross-head to said pump-rod, said connecting means comprising two bearing plates adapted to embrace said pump-rods, trunnion members formed with each of said bearing plates and extending from the lower end thereof, the trunnion members of each bearing plate being adapted to cooperate with the trunnion members of the other bearing plate, bearings carried by said crosshead in which said trunnions are journaled and which are adapted to be tightened about the trunnion lmembers for holding their lower .ends together about the pump-rod, and means for tightening the upper ends of said bearing plates together about the pumprod.

7. In a pump, the combination of a pumprod, a cross-head in the form of two bars spaced one above the other, means for reciprocatmg sald cross-head, and means for connecting said cross-head to said pump-.

rod, said connecting means comprising twov bearing plates adapted to embrace said pump-rod, trunnion members carried by each of said plates adapted to cooperate with the trunnion members of the other plate, oppositely disposed bearing blocks carried by the cross-bars of said cross-head adapted to provide bearings for said trunnions, means for tightening said bearing blocks together for tightening the bearings about the trunnions and for holding the lower ends of the bearing plates together about the pump-rod, and other means for tightening said bearing plates in position about the pump-rod.

MATTHEW T. CHAPMAN.

MARK C. CHAPMAN. Witnesses:

R. D. MAHAFFRY,

H. W. SPILLER.

Copies of this patent may be obtained for flve cents each, by addressing the" "Commissioner of Patents,

Washington, D. U. 

